CISA Exam Dumps - Certified Information Systems Auditor

Comprehensive and Detailed Step-by-Step Explanation:

To ensurecompleteness of outbound transactions, alog with periodic validationis thebest control.

Option A (Incorrect):Edit checkshelp withdata accuracy, not completeness.

Option B (Incorrect):Sequential numberingdetects missing transactions but does not verifyactual transmission.

Option C (Incorrect):Recipient ID validationis important foraccuracy, not for ensuring all transactions are sent.

Option D (Correct):Maintaining and validating transaction logsensures thatall outbound transactions are properly accounted for, making it the best completeness control.

The primary responsibility of an IS auditor during the design phase of a software development project is to evaluate the controls incorporated into the system specifications. Controls aremechanisms or procedures that aim to ensure the security, reliability, or performance of a system or process. System specifications are documents that define and describe the requirements, features, functions, or components of a system or software. Evaluating the controls incorporated into the system specifications is a key responsibility of an IS auditor during the design phase of a software development project, as it helps ensure that the system or software meets the organization’s objectives, standards, and expectations for security, reliability, or performance. The other options are not primary responsibilities of an IS auditor during the design phase of a software development project, as they do not directly relate to evaluating the controls incorporated into the system specifications. Future compatibility of the application is a possible factor that may affect the functionality or usability of the application in different environments or platforms, but it is not a primary responsibility of an IS auditor during the design phase of a software development project. Proposed functionality of the application is a possible factor that may affect the suitability or value of the application for meeting user needs or expectations, but it is not a primary responsibility of an IS auditor during the design phase of a software development project. Development methodology employed is a possible factor that may affect the quality or consistency of the software development process, but it is not a primary responsibility of an IS auditor during the design phase of a software development project. References: CISA Review Manual (Digital Version), Chapter 3, Section 3.3

The scanning will not degrade system performance. This is the most important consideration when establishing vulnerability scanning on critical IT infrastructure, because any degradation of system performance could affect the availability, reliability, and functionality of the IT services that depend on the infrastructure. Scanning during non-peak hours (A) could reduce the impact of scanning on system performance, but it does not guarantee that the scanning will not cause any degradation. Scanning followed by penetration testing (B) could provide more in-depth information about the vulnerabilities and their exploitability, but it does not address the potential impact of scanning on system performance. Scanning cost-effectiveness © is a relevant factor for choosing a scanning service or tool, but it is not as important as ensuring that the scanning will not compromise the system performance.

 The primary purpose of creating a simulated production environment with multiple vulnerable applications is to attract attackers in order to study their behavior. This is a technique known as honeypotting, which is a form of deception security that lures attackers into a fake system or network that mimics the real one, but is isolated and monitored1. Honeypotting can help security teams to learn about the attackers’ methods, tools, motives, and targets, and to collect valuable intelligence that can be used to improve the security posture of the organization1. Honeypotting can also help to divert the attackers’ attention from the real assets and to waste their time and resources2.

The other options are not the primary purpose of creating a simulated production environment with multiple vulnerable applications. To collect digital evidence of cyberattacks, security teams would need to use forensic tools and techniques that can preserve and analyze the data from the compromised systems or networks3. To provide training to security managers, security teams would need to use simulation tools and scenarios that can test and enhance their skills and knowledge in responding to cyber incidents4. To test the intrusion detection system (IDS), security teams would need to use penetration testing tools and methods that can evaluate the effectiveness and performance of the IDS in detecting and preventing malicious activities5.

 Access to the data center is controlled by a mantrap provides the greatest assurance that only authorized individuals can access a data center. A mantrap is a physical security device that consists of a small space with two sets of interlocking doors, such that the first set of doors must close before the second set opens1. A mantrap prevents unauthorized entry by requiring authentication at both doors, such as biometric scanners, card readers, or PIN codes. A mantrap also prevents tailgating, which is the act of following an authorized person into a restricted area without proper authorization2. A mantrap can also detect and trap intruders who attempt to force their way through the doors.

The other options are less effective physical controls for data center access. The data center is patrolled by a security guard is a deterrent measure, but it does not prevent unauthorized access by itself. A security guard may not be able to monitor all entry points, or may be distracted, bribed, or overpowered by intruders. Access to the data center is monitored by video cameras is a detective measure, but it does not prevent unauthorized access either. Video cameras can record the activities of intruders, but they cannot stop them from entering or alert the security personnel in real time. ID badges must be displayed before access is granted is a preventive measure, but it relies on human verification, which can be prone to errors or manipulation. ID badges can also be lost, stolen, or forged by intruders.